40CrNiMoA SAE8640H Steel Round Bar / Alloy Rod AISI 4340 DIN1.6510

40CrNiMoA SAE8640H Steel Round Bar Hot Rolled Alloy Rod AISI 4340 DIN1.6510

40CrNiMoA steel round bar is devided into 40CrNiMoA hot rolled steel bar and 40CrNiMoA Forged steel bar. 40CrNiMoA round bar has high strength and hardness, good weldability, toughness, machinability and so on.

Common diameter for hot rolled steel bar:8mm to 80mm
Common diameter for forged steel bar: 80mm to 1200mm

Package: standard seaworthy packing or as customer required

Tolerance for the steel bar:
Diameter tolerance: 0~3mm, Length tolerance:0~20mm
Straightness: 3mm/1000mm

Delivery condition for 40CrNiMoA steel bar:
Hot forged +Normalized+rough turned Q/T:Quench+ Temper Annealing
EAF ARC FURNACE + LF REFINING+ VD + FORGING (DOUBLE) + FIXED LENGTH + SEP1921C/c TESTING

Equal material of 40CrNiMoA

Chemical composition of 40CrNiMoA

Mechanical property of 40CrNiMoA

40CrNiMoA steel round bar Application
Typical applications are for structural use, such as aircraft landing gear, power transmission gears and shafts and other structural parts.

Bebon international Co.,ltd is professional in steel bar. We are a large stockist of steel bar in China. We have almost 750 ton steel bar of 40CrNiMoA in stock. The stock size ranges from Φ80to Φ700. The common length for 40CrNiMoA steel bar is 3000mm, 6000mm, 9000mm. And the price is competitive. If your size can be picked in our warehouse, we can transport the products to the loading port in 3 days. So please be free to contact us if you require steel bar.

Jiangsu Mittel Steel Industrial Limited is  located in Wuxi City,  a beautiful city near Shanghai.  Wuxi is close to  Shanghai (BAO STEEL) ,Zhangjiagang (ZPSS),Ningbo (BAO XIN),KUN SHAN (DKSS), enjoy excellent geographic location and convenient water, land and air transportation. , Wuxi become the biggest  stainless steel sheet ,plate and coil  supply Centers in China. Jiangsu Mittel Steel Industrial Limited was established in 1998 years. as one of the largest stockists and manufacturers of industrial grade Stainless Steel products and derivatives in Wuxi ,We keep a stock of 50000 tons every month, so we can delivery goods in fast time.

Our company supplies cold/hot-rolled stainless steel sheets,stainless steel coils and stainless steel Plate to many steel factories from athome and abroad, including Shanxi Taigang Iron& Steel CO, . Ltd (TISCO)Zhangjiagang Pohang (ZPSS), Shanghai BAO STEEL, Ningbo Baoxin and steel factories in Taiwan area, Mainland Chinese and foreign countries and regions. 

Our long-term business lines are 201.202.304(1.4301).304L.316.316L(1.4404).430.409L, 309S ,310S(1.4845).317L.904L.S31803(1.4462).S32750.S32760, Finish: 2B, BA, NO. 1 NO. 4, HL, 8K and so on...Meanwhile, our company is also engaged in the long-term supply of homemade & imported medium and thick plates, galvanized and carbon steel products. 

Adhering to the principle of "quality first and customer foremost",our company will offer long-term service to nationwide manufacturers of household appliances, elevators, tableware, ornaments, tanks and machines. We can offer precise frosted wiredrawing, 8K mirror finishing and skim board oil-abrasion of various specifications at any time. The precisely-processed products will meet your requirements for high quality. Our company is a modern enterprise integrating distribution and storage. 

If you are interested in any of our products or would like to discuss a custom order, please feel free to contact us. We are looking forward to forming successful business relationships with new clients around the world in the near future.